Fibre-forming polymers

ABSTRACT

A COMPOUND OF THE FORMULA: R-CO-AR-O-(CH2)N-O-AR&#39;&#39;-O-(CH2)M-O-AR&#34;-CO-R   WHERE AR,AR&#39;&#39; AND AR&#34; ARE EACH OF ANY ONE OF THE FOLLOWING DIRADICALS:   1,4-PHENYLENE, NAPHTHALENE, PHENYLENE-X-PHENYLENE, AND BIPHENYLENE   X IS -O-, -CO-, -S-, -SO-, -SO2-, -C(-A)(-B)-,   -C(-D)(-E)-, OR -(CH2)P-   A, B, D AND E ARE EACH ANY ONE OF THE SUBSTITUENTS -H, -CH3 AND -CH2H5, R IS HYDROXY, HALOGEN OR ALKOXY M, N, AND P ARE EACH AN INTEGER WHICH IS NOT LESS THAN 2 AND NOT MORE THAN 6, AND THE AROMATIC RING, OR EITHER OR BOTH OF THE AROMATIC RINGS, OF THE DIRADICALS MAY OPTIONALLY BE SUBSTITUTED IN AT LEAST ONE OF THE FREE POSITIONS, EACH SUCH SUBSTITUENT BEING A METHYL, ETHYL, METHOXY, ETHOXY OR HALOGEN SUBSTITUENT, AND POLYMERIC PRODUCTS PREPARED THEREFROM. SHAPED ARTICLES CAN BE PREPARED FROM SUCH POLYMERIC PRODUCTS.

United States Patent ce 3,646,108

Patented Feb. 29, 1972 X is 3,646,108 O O a a d FIBRE-FORMING POLYMERS H I f Edward Barry Jones and John Mather, Harrogate, Eng- -O,- -,-s-, s,. J-, JI-(ilor -CHz-- land, assignors to Imperial Chemical Industries Limited, 5 ll l l L 1 London, England No Drawing. Filed Nov. 22, 1966, Ser. No. 596,061 a, b, d and e are each any one of the substituents H, Claims priority, application Great Britain, Sept. 23, 1965, CH;; and C H 49,699/65 R is hydroxy, halogen or alkoxy, UIS. CL 3 65/20, 69/ 7 143/52 9 Claims m, n and p are each an integer which is not less than 2 10 and not more than 6, and the aromatic ring, or either or both of the aromatic rings, of the diradicals may optionally be substituted in at least one of the free ABSTRACT OF THE DISCLOSURE positions, each such substituent being a methyl, ethyl, A compound of the formula: methoxy, ethoxy or halogen substituent.

The compounds of our invention may be prepared, n for example, according to either of the following schemes:

where SCHEME I ArZ1 igrdi $11112: Ar are each of any one 0 e 0 wing HO (OHZ)D O ArI O=(OH2)u OH SCHEME II Q Q7 QC? X and '1 '1 Or HOi JQOOHZCH OH o b e 2 0 *2 5 H0(JOCH2CH:OH on on 0, b, a' and e are each any one of the substituents H, 40 0 CH3 and CH2H5, (I!) R is hydroxy, halogen or alkoxy CHQO OCH2CH2OH m, n and p are each an integer which is not less than 2 and not more than 6, and the aromatic ring, or either 3. O 0

or both of the aromatic rings, of the diradicals may CHSOgQOCHZCHZOH CH3 @l c1 optionally be substituted in at least one of the free positions, each such substituent being a methyl, ethyl,

methoxy, ethoxy or halogen substituent, and polymeric O 0 products prepared therefrom. Shaped articles can be CH I L OCH LI CH prepared from such polymeric products. 3 2 2 g 9 4.2 0 0 The present invention relates to novel intermediates 1 @0113 HOQOH containing associated pairs of bis aryloxy alkane groups, lg to the use of these novel intermediates in the preparation of polymers and to such polymers. l

According to the present invention we provide a compound of the formula:

o o (HCBH 0 00 R 011,0tioonromooomomo 00H,

wherein Ar and are each any one of the following The compounds of our invention may be used as intera dica1s mediates 1n the preparation of polymers according to known methods. Thus, for example, polyetheresters may be prepared from the compounds of our invention wherein R is halogen, hydroxy or alkoxy, polyetheramides may be prepared from the compounds wherein R is hydroxy,

alkoxy or halogen, polyetheranhydrides may be prepared from the compounds wherein R is hydroxyl, polyether Q XQ" and semicarbazides may be prepared from the compounds wherein R is alkoxy and polyether 1:3:4-oxadiazoles may be prepared from the compounds wherein R is halogen.

From the intermediate of the present invention there may be prepared by conventional means a polyetherester of which the repeating unit is of the formula:

wherein Ar, Ar, Ar", m and n each have the significance hereinbefore defined and R is a divalent radical such that HO-R'OH is a glycol or a dihydroxy aromatic compound.

Particularly suitable compounds of the type HOROH are HO(-CH2)q-OH wherein q is an integer not less than 2 and not more than 10, bis-1:4 hydroxymethyl cyclohexane (which may be cis, trans or a mixture of these isomers),

HO OH @XQ wherein X is as defined hereinbefore.

Copolyetheresters may also be prepared in which in a minor proportion of the units depicted hereinbefore one or more of the symbols Ar, Ar, A", n, m and R have a different significance from that in the remainder, or in which a proportion of the units may be of formula other than that depicted herein-before.

The polyetheresters may be prepared, for example by the reaction at elevated temperature of an ester of the formula:

with a glycol of the formula HOR'OH, all of the symbols having the significance already attributed to them hereinbefore, under ester-interchange conditions in the presence of an ester-interchange catalyst, followed by polycondensation of the ester-interchange product in the presence of a polycondensation catalyst until the desired molecular weight is achieved. The copolyetheresters may be prepared by a similar method wherein a proportion of the ester described is substituted by a second diester and/ or a proportion of the glycol is substituted by a second glycol.

From the intermediate of our invention there may be prepared by conventional means a polyether amide of which the repeating unit is of the formula:

wherein R" is a diradical such that H NRNH is a diamine.

Copolyether amides may also be prepared in which in a minor proportion of the units depicted hereinbefore one or more of the symbols Ar, Ar, Ar", 11, m and R" may have a significance diiferent from that in the remainder, or in which a proportion of the units may be of formula other than that depicted hereinbefore.

From the intermediate of our invention there may be prepared by conventional means a polyether anhydride of which the repeating unit is of the formula:

wherein Ar, Ar and Ar", m and n each have significance hereinbefore defined.

Copolyether anhydrides may also be prepared in which in a minor proportion of the units depicted hereinbefore one or more of the symbols Ar, Ar, Ar", nand m may have a significance different from that in the remainder, or in which a minor proportion of the units may be of formula other than depicted hereinbefore.

From the intermediate of the present invention there may be prepared by conventional means a polyether 1:3:4-oxadiazole of which the repeating unit is of the formula:

Copolyether 1:3:4-oxadiazoles may also be prepared in which in a minor proportion of the units depicted hereinbefore one or more of the symbols Ar, Ar, Ar n and m have a significance different from that in the remainder, or in which a minor proportion of the units may be of formula other than depicted hereinbefore.

From the intermediate of the present invention there may be prepared by conventional means a polyether semicar-bazide of which the repeating unit is of the formula:

in which R" is an alkylene group and Ar, Ar, Ar, n and m each have the significance hereinbefore defined.

Copolyether semicarbazides may also be prepared in which in a minor proportion of the units depicted hereinbefore one or more of the symbols Ar, Ar, Ar", n, m and R' may have a significance different from that in the remainder, or in which a minor proportion of the units may be of the formula other than depicted hereinbefore.

The polymers prepared from the intermediate of our invention when of appropriate molecular weights are suitable for the preparation of moulding; when of appropriate molecular weight and degree of crystallinity they are suitable for melt-spinning to form fibres or extrusion to form mono-filaments or films. The fibres, monofilaments and film may be drawn after formation in order to increase their orientation.

For particular purposes, these polymers may have incorporated into them additives, for example delustrants, colouring materials, light stabilizers, optical brighteners wards dyestuffs. Such additives may be incorporated during the preparation of the polymers or after their preparation is completed.

In order that our invention should be the more perfectly understood we give hereinafter some examples of the preparation of intermediates according to our inven tion and of the preparation of polymers from them. In these examples all parts are by weight.

(A) PREPARATION OF TOLUENE SULPHONATE. INTERMEDIATE? Example Al.Preparation of 1:4 bis(,B-p-toluene sulphonyloxy ethoxy) benzene A solution of hyroquinone (550 parts), ethylene chlorohydrin (1000 parts) and potassium hydroxide (600 parts) in water (3,500 parts) was stirred at C. in an atmosphere of nitrogen for 6 hours. The product, 1:4 bis (fl-hydroxy ethoxy) benzene, was cooled and filtered, and the residue washed with cold Water. It was then dried and recrystallized from 1,000 parts of ethyl acetate. M.P. 102- 103 C. yield 60%.

Toluene p-sulphonyl chloride (191 parts) was added during 1 hour in small portions to a solution of 1:4 bis (fi-hydroxy ethoxy) benzene (99 parts) in pyridine (1,000 parts). The reaction mixture was stirred and kept at 10 C. for 2 hours. The product was filtered to remove pyridine hydrochloride and the filtrate was poured into water (2,000 parts) to precipitate the reaction product. This was filtered off, washed firstly with dilute hydrochloric acid (250 parts) and then by water (250 parts) and recrystallized from n-butanol (400 parts). The yield was 182 parts that is 72% of that theoretically obtainable. The melting point of the product was 144-147 C.

Example A2.Preparation of methyl p-(fi-p-toluene sulphonyloxy ethoxy) benzene A slurry was made of p-hydroxybenzoic acid (408 parts) in water (1,600 parts). To this slurry was added a 20% solution of sodium hydroxide until a neutral homogeneous solution was attained. This solution was cooled to 2 C. in a stoppered vessel fitted with a Bunsen valve and ethylene oxide (215 parts) was added during minutes. The mixture was allowed to stand at room temperature for 18 hours.

The mixture was then heated at 60 C. for 5 hours and refluxed for 1 hour, allowed to cool and acidified with concentrated hydrochloric acid to pH 2. This solution was diluted with Water (200 parts), filtered and the residue washed with water (1000 parts) and dried in a vacuum oven at 50 C. for 18 hours.

The resulting B-p-hydroxy ethoxy benzoic acid was obtained in a 90% yield (480 parts), MJP. 174176 C.

This product was refluxed in methanol (2400 parts) containing a catalytic amount of concentrated sulphuric acid (120 parts) for 18 hours. Excess methanol (2000 parts) was then distilled oil and the solution neutralized with sodium bicarbonate. Water (800 parts) was added and the whole extracted with chloroform (2x250 parts and 1x200 parts). The cholroform extract was washed with cold aqueous sodium hydroxide (3x566 parts) to remove any unreacted acid and then with water (4X 500 parts). The chloroform extract was then dried over sodium sulphate and evaporated to dryness. Methyl fl-p-hydroxy ethoxy benzoate was obtained in an 84% yield (485 parts), M.P. 67-68 C.

The above product (156 parts) was dissolved in acetone (1900 parts) containing sodium hydroxide (80 parts) and water (160 parts) and the solution chilled to below 5 C. Toluene p-sulphonyl chloride (152 parts) was added and the solution kept between 5 and 10 C. for 3 hours and at 14 C. for 18 hours. The solution was then poured into water (6000 parts) and allowed to stand. The product, methyl p-(B-p-sulphonyloxy ethoxy) benzoate precipitated out initially as an oil which later solidified. The product was filtered off and recrystallized, with carbon treatment, from 60/40 by volume isopropanol/ water mixture by weight solution). The product was washed thoroughly with water and dried in a vacuum oven at C. Yield 220 parts (79%), M.P. 6566 C.

Example A3.Preparation of 1:4 bis(l-p-toluene sulphonyloxy but-4-oxy) benzene To a nitrogen purged 70/30 acetone water mixture (300 parts) was added hydroquinone (11 parts) 1:4 bis(ptoluene sulphonloxy) butane (79.6 parts) and potassium carbonate (40 parts) and the whole refluxed for 24 hours. The mixture was then poured into water and the precipitate filtered ofi and then recrystallized five times from methanol (200) parts with carbon treatments. The resulting white crystalline product (yield 28 parts which is 56% of the theoretical quantity) melted at 7073 C.

6 (B) PREPARATION OF POLYMER INTERMEDIATES Example B1.Preparation of 1:4 bis(,B-p-methoxy carbonyl phenoxy ethoxy)benzene Example B2.Preparation of 1:4 bis(;9-p-carboxy phenoxy ethoxy)benzene if 0 HO ooomomo ocmcmoii 011 1:4 bis(,B-p-methoxy carbonyl phenoxy ethoxy)benzene (173 parts) from Example B1 was added to 1115 parts of ethylene glycol containing sodium hydroxide (40 parts) and the mixture refluxed for 1 hour. The solution was then poured into water (5000 parts) boiled and filtered hot. The filtrate was acidified and filtered and the resulting residue washed with water and dried. The total yield of dicarboxylic acid was 119 parts (65% M.P. 335-336 C.

Example B3.Preparation of 1:4 bis(;8-p-chlorocarbonyl phenoxy ethoxy)benzene O O (l 1 Cl OCH C H O OOHQCHZO C1 1:4 bis( 8-p-carboxyphenoxy ethoxy)benzene (817 parts) from Example B2 was refluxed for 1 hour in thionyl chloride (830 parts) containing NN dimethyl formamide (1 part) until all the acid had dissolved. The excess thionyl chloride was distilled off and the residue boiled with benzene (350 parts). The benzene solution was filtered hot and the product crystallised from benzene with carbon treatment. The pure product, yield 59 parts (66%), M.P. 163165 C., was stored in a desiccator over phosphorus pentoxide.

Example B4.-Preparation of 1:5 bis(fl-p-methoxycarbonyl phenoxy ethoxy)naphthalene ll CHQOG OCH-JCHQO 1:5 dihydroxy naphthalene (360 parts) methyl p-(flp-toluene sulphonyloxy ethoxy) benzoate (1575 parts) and potassium carbonate (870 parts) were dissolved in 5600 parts of a 65/35, by volume, acetone/water mixture and the whole refluxed for 66 hours. The solution was then filtered hot and the crude product recrystallized 4 times, with carbon treatment, from cyclohexanone (as a 10% by weight solution). The pure product was obtained in a 51% yield (469 parts), M.P. 215-215 C.

7 8 Example B5.Preparation of 1:5 bisflS-p carboxy pp-Dihydroxy diphenyl (36 parts), methyl p-(B-p-toluphenoxy ethoxy)naphthalene ene sulphonyloxy ethoxy) benzoate (140 parts) and potassiurn carbonate (77.3 parts) were dissolved in 1000 of a 65/35, by volume, dioxan/water mixture and the whole refluxed for 18 hours. The solution was then poured into HOgQOOHZCHfl) 800 parts of acetone, filtered and the residue dried. The

0 crude product was extracted with 1400 parts cyclohexo anone and the resulting solution allowed to cool and the precipitate which separated out was filtered off and dried.

This product was further purified by recrystallizing with carbon treatment, from cyclohexanone (950 parts). The

was essentially that described in Example B2 using the pure produce which wasoobtained in a 42% yield (46 diester from Example B4. The product was obtained in parts) melted at 242 244 a 67% yield and melted at a temperature greater than Example B10.Preparation of pp-bis(B-p-n-butyloxy 350 C. carbonylphenoxy ethoxy)diphenyl o oimoooomomo oomomoo 0 0.11,

Example B6.--Preparation of 1:5 bisQB-p-chloropp Bis(B-p-methoxy carbonyl phenoxy ethoxy) di- The method of preparation of this dicarboxylic acid carbonyl phenoxy ethoxy)naphthalene phenyl (5.42) parts) from Example B9 was added to n- O butanol (24 parts) containing titanium t-butoxide (0.05 15 parts of a 1% solution in t-butanol) and a trace of anti- Cl Q Q O oxidant bis(2 hydroxy-I'm-methyl cyclohexyl-5-methyl)- OCH CH 0 g phenyl methane in a pressure tube. The tube was purged 2 2 with nitrogen, sealed and then heated at 250 C. for 2 This product was prepared in a manner similar to hours. The resulting n-butyl ester was recrystallized from that described in Example B3 using the dicarboxylic dioxan and mated at 1894900 acid prepared as in Example 5. The product was obtained 3 Example B11.Preparation of pp'-bis (fi-p-methoxy carin a 22% yield and melted at 223-226 C. 0 bonyl phenoxy ethoxy) diphenyl sulfone i i 0 OH2OC@OOHzCHaOQ-EQOOHZGHZOQiiOOHa Example B7.-Preparation of 2:6 bis(fl-p-methoxypp'-Dihydroxy diphenyl sulphone (50 parts) methyl pcarbonyl phenoxy ethoxy)naphthalene (fl-p-toluene sulphonyloxy ethoxy) benzoate (140 parts) i i CH3OCOCHzOHzO 0cusnorno@hoorr This intermediate was prepared in a similar manner and potassium carbonate (77.3 parts) were dissolved in to that described in Example B4 and was obtained in a 1500 parts of a mixture of equal parts, by volume, of 23.5% yield M.P. 248-259 C. acetone and water and the mixture was refluxed for 18 hours. On cooling the resultant solution, a product recrys- Example B8'Prepa'rat10n of blsma'methoxy tallized out which was filtered off and dried. The product,

carbonybanaphthoxy ethoxywenzene which was pp'-(fl-p-methoxy carbonyl phenoxy ethoxy) g o diphenyl sulphone was purified by recrystallization from 500 parts of a mixture of equal parts, by volume, of ace- OCHZCHZOQOCHZCHZCOCH tone and water. The purified product, M.P. 132-135 C., Methyl 2-hydroxy -naphthoate (72.8 parts) 1:4 bisQS- was obtamad a 34% yleld (41 Parts) 13401116116 p y y Y) benzene (1011 P Example B12.Prepar=ation of 1:4 bis({3-p-methoxy and potassium carbonate (77.3 parts) were dissolved in b lh phenoxy ethoxy) benzene OOH; 01130 if i ornoooomomo oomomooocm 1500 Parts of a mixture q P51lr y Volume, of Redistilled methyl vanillate (34.2 parts) 1:4 bistIfl-pacetone and water and the mlxture refluxed for 18 hours. tolu n sulphonyloxy eth y) benzene (50.6 parts) were The resulting mixture was poured into acetone (800 parts) refluxed in 500 parts of a /35 acetone water mixture and the precipitate filtered ff, W s fi With acetone (2 r containing potassium carbonate (38.7 parts) for 72 hours. P w dfled- The CTPde Product Purified lf The solution was allowed to cool and the solid filtered off, cfystalllllng from dimethyl fofmamlde- Thfi Purlfifid washed with water and methanol and dried. This crude P which Was 154 (5 2 Y- Y product was recrystallized, with carbon treatment, from EP fy) benzene melted at 2554570 The n-butanol (400 parts) and again, as a 15% by weight yield of the purified product was 25.2 parts (22% solution, from NN dimethyl formamide. The pure prod Example B9.Preparation of pp'-bis(,B-p-methoxy caruct was obtained in a 45% yield (2.5 parts) and melted bonyl phenoxy ethoxy)diphenyl at 178-179 C.

9 10 Example B13.Preparation of 1:4 bis(B-p-carboxy-ofiltered oil, washed with acetone and dried. The crude methoxy phenoxy ethoxy)benzene product was purified by recrystallization from NN' dimethyl formamide (900 parts). The pure product, which OCH; C1130 was 1:4 bis(B-p-hydrazo carbonyl phenoxy ethoxy) benzene was obtained in a 42.5% yield (18.2 parts) and 0 nobocrncmo ocntomo fl melted at 27372760 (C) PREPARATION OF POLYETHERESTERS This product was prepared in a manner similar to that Polycondensation of 1:4 bis(fl-p-methoxy carbonyl described in Example B2 using the diester prepared as in phenoxy ethoxy benzene with ethylene glycol Example B12. The final product, which was 1:4 bis(B-p- A mixture of 1:4 bis(B-p-methoxy carbonyl phenoxy carboxy-o-methoxy phenoxy ethoxy) benzene was obethoxy) benzene (485 parts), prepared as in Example tained in a 44.5% yield and melted at 252-254 C. ethylene glycol P and titanium t-butoxide (11.6 parts of a 1% solution in t-butanol) plus an anti- Example B14.Preparation of 1:4 bis(fi-p-chlorocaroxidant bis(2 hydroxy-3-u-methylcyclo-hexyl-S-methyl) bonyl-o-methoxy phenoxy ethoxy)benzene phenyl methane (2.5 parts) was heated at 200 C. in a slow stream of nitrogen. When the theoretical quantity of methanol had distilled Off, the temperature was raised 0 00113 Hs to 240--0 C. to distill off the excess ethylene glycol.

I O g J The mass was then heated in a slow stream of nitrogen 01 OCH2CH2OOCH2CH2O 10 d at 0.1 mm. Hg. and 284 C. for 3 hours, after which time a viscous polymer was obtained. The polymer, which was fibre forming and highly crystalline, melted in the range 225228 C. The polymer had a relative viscosity d l t' d' hl essentially that described in Example B3 using the dicarg i g 1 1% so u ion m 10 Ow acme acld at boxylic acid prepared as in Example B13. The final product melted at 145-150 C. and was obtained in a 35.8% Example C2.--Polycondensation of 1:4 bis(B-p-methoxy The method of preparation of this diacid chloride was yield. carbonyl phenoxy ethoxy) benzene with 1:4 butane diol o [-bQoomomoQoornornoQoowmno-il Example B15.Preparation of 1:4 bis(l-p-methoxy car- This polymerisation was carried out in a manner esbonyl phenoxy but-4-oxy) benzene sentially similar to that described in Example C1 using 0 O 40 the diester prepared as in Example B1 and 1:4 butane g g diol. The final polymer had a viscosity ratio of 1.94 QWOHQMOQMCHZMOQ (measured as a 1% solution in ortho chlorophenol at 25 C.) and melted in the range 215-219 C. Highly A Solution of methyl phydroxybenzoate (15's parts) crystalline fibre could be pulled from the melt.

1:4 bis(l-p-toluene sulphonyloxy but-4-oxy) benzene (28 parts) and potassium carbonate (18 parts) in acetone Example C3.Polycondensation of 1:4 bis(l-p-methoxy (190 parts) and water parts) was refluxed for 60 carbonyl phenoxy but-4-oxy) benzene and ethylene glycol 0 ii [-bQO (CHZMOQO (CH h-QC 0 (m mbo-1 hours. The solution was then filtered and the residue The procedure followed in this example was similar washed with water and acetone. The crude product was to that described in E l 1 using h diester gi g i giiiggg fi g fififi g ggg 3 132 pared as in Example B15. The polymer, which was crystal- 60 parts (23%) melted at 176-177 C. 55 line and fibre forming, had a relative viscosity of 1.79

Example reparation of bis(fi p hydrazo (measured as a 1% solution in dichloro acetic acid at carbonyl phenoxy ethoxy)benzene 25 C.). The polymer melted in the range 190-1-95 C. 6 HZNNHiioonzonzoocmonzooNHNHz 1:4 bis(B-p-methoxy carbonyl phenoxy ethoxy) ben- Example C4.Polycondensation of 1:4 bis (fl-methoxy zene was initially converted to its dibutyl ester in a mancarbonyl phenoxy ethoxy benzene and 1:4 cyclohexane ner similar to that described in Example B10. The proddimethanol, 80/20 trans/01s isomer [-bQOOH CHK 0oH2oH20 d0oH2 oH20-] uct, which was obtained in a quantitative yield, melted at The above diester (4.29 parts), prepared as described 146-147" C. in Example B1, was added to a large excess of 1:4 cyclo- The dibutyl ester (40 parts) was then dissolved in nhexane dimethanol, /20 trans/cis isomer (7 parts) butanol (400 parts) at a temperature of -105 C., containing, as catalyst, titanium t-butoxide (0.08 pa rt of and to this hot solution was added hydrazine hydrate a 1% solution in t-butanol) and a trace of antioxidant (100 parts of a 98100% solution). The mixture was methane in a pressure tube. The tube was purged with then refluxed for 17 hours. The resulting precipitate was 75 nitrogen, sealed and then heated at 250 C. for 4 hours.

1 1 l 2 After cooling, the mixture was transferred to a polym- The procedure described in Example C2 was followed erisation vessel and heated at 284 C. toremove the exusing the diester prepared as in B4 but using a calcium C655 6101- A Vacuum Of 001 Hg Was then pp acetate, phosphorous acid, antimony oxide catalyst sysfor 2 hours- The resulting P y was highly Crystalline tem. The final polymer had a viscosity ratio of 1.20

and fibre forming. it had a viscosity ratio of 1.65 (as a (measured as a 1% Solution in orthochlorophenol at 1% solution in dichloroacetic acid at 25 C.) and melted cm in the range 252-256 C.

Example C5.-Polycondensation of 1:4 bisQS-p-methoxy EXAMPLE cs-Polycondensation of 115 (5'P- carbonyl phenoxy ethoxy) benzene and 1:4 cyclo thoxy carbonyl phenoxy ethoxy) naphthalene and 1:4 hexane dimethanol, trans isomer cyclohexane dimethanol, 80/20 trans/cis isomer 0 oooulomo oongorrzo com S 01120 The procedure described in Example C4, but using The procedure described in Example C4 was followed the all trans isomer of 1:4 cyclohexane dimethanol, was using the diester prepared as in Example B4. The polyfollowed. The crystalline, fibre forming, polymer melted mer formed, had only a low degree of crystallinity alat 262-264 C. and had a viscosity ratio of 1.81 (1% though a marked increase in crystallinity was attained solution in dichloroacetic acid at 25 C.). by annealing at 200 C. for minutes. The resulting crystalline melting point was in the range 242-245 C.

EXAMPLE C6.Polycondensation of 1:5 bis(;3-p- The polymer, which was fibre forming, had a viscosity thoxy carbonyl phenoxy ethoxy naphthalene and ethylratio (1% solution in dichloroacetic acid at 25 C.) of ene glycol 30 1.49.

t 4ioomomo t @ocmomoQdoomomo- An ester interchange was carried out between 1:5 bis- EXAMPLE 9C.-Polycondensation of 2:6 bis(-p-me- (/3-p-methoxy carbonyl phenoxy ethoxy) naphthalene thoxy carbonyl phenoxy ethoxy naphthalene and ethyl- (44.5 parts), prepared as in Example B4, and ethylene ene glycol I -docrncnzo i ocmcrnoQOoomcmoglycol (165 parts) using a zinc acetate catalyst (0.009 The procedure described in Example C6 was followed part) at 200 C. under an atmosphere of nitrogen. When using the diester prepared as in Example B7 except that the theoretical quantity of methanol had distilled off, phosthe polymerisation temperature was 305 C. The resultphorous acid was added in a quantity sufiicient to new ing polymer was highly crystalline and melted in the tralise the ester interchange catalyst and then, after a range 282-2S5 C. The polymer was insoluble in ortho delay of 5 minutes, antimony oxide (0.018 part) was chloro phenol and dichloroacetic acid. Strong fibres could added. Excess ethylene glycol was distilled off and the be pulled from the melt. mass heated at 285 C. for 2 hours under a reduced pressure of nitrogen (0.05 mm. Hg). EXAMPLE ClO.-Polycondensation of 1:4 bis(p-p-me- The resulting polymer was crystalline and melted in thoxy carbony1-6-naphthoxy ethoxy) benzene and 1:4

the range 252-256 C. Strong fibres could be pulled cyclohexane dimethanol, 80/20 trans/cis isomer I? l -0i 001n0m0 oomcmoi oon s cn2ofrom the melt. The polymer had a relative viscosity (meas- The procedure described in Example C4 was followed ured as a 1% solution in ortho chloro phenol at 25 C.) using the diester prepared as in Example B8 except that of 1.63. the polymerisation temperature used was 305 C. The EXAMPLE C7.--Polycondensation of 1:5 bis(fi-p-mel'fislllting y highly crystallifle P y mfilted at thoxy carbonyl phenoxy ethoxy naphthalene and 1:4 276 C. and was insoluble in the normal solvents for butane diol polyesters.

EXAMPLE Cll.Polycondensation of pp-bis(B-p-n butyloxy carbonyl phenoxy ethoxy) diphenyl and ethylene glycol The procedure described in Example Cl was followed using the diester prepared as in Example B11. The resulting polymer was amorphous and fibres drawn from the The polycondensation was carried out in a manner Example C12.Polycondensatin of pp bisQS-p-methoxy carbonyl phenoxy ethoxy)diphenyl and 1:4 butane diol melt exhibited severe shrinkage in the range 115l25 C. The viscosity ratio of the polymer was 1.46 (1% solution in dichloroacetic acid at 0.).

Example C15.Polycondensation of 1:4 bisQS-p-methoxy carbonyl-o-methoxy phenoxy ethoxy)benzene and ethylene glycol 0 CH CH 0 0 0 LL OCHzCHzO OCH CHgO OCH2CH2O The procedure described in Example C2 was followed using the dimethyl ester prepared as in Example B9. The

resulting polymer was very highly crystalline, M.P. 273- 276 C., and was insoluble, at room temperature, in normal solvents for polyesters.

Example C13.-Polycondensation of pp bis(,B-p-methoxy canbonyl phenoxy ethoxy)diphenyl and 1:4 cyclohexane dimethanol, 80/20 trans/cis isomer The polymer had a relative viscosity of 1.75 (1% solution in ortho chlorophenol at 25 C.).

O O l- Q QQ Q l The procedure used was similar to that described in Example C4, using the dimethyl prepared as in Example B9, except that the polymerisation was carried out at 305 C. The resulting crystalline, fibre forming, polymer melted in the range 269-273 C. and had a viscosity ratio (D) PREPARATION OF POLYETHERAMIDES Example D1.Polycondensation of 1:4 bis( 3p-chloro carbonyl phenoxy ethoxy)benzene and hexamethylene diamine o 0 [iiQoomomoQoomomoQiiNmoHmNH (1% solution in dichloroacetic acid at 25 C.) of 1.61.

Example C14.-Polycondensation of pp bis( 8-p-methoxy carbonyl phenoxy ethoxy) diphenyl sulphone and ethylene glycol The above diacid chloride (2.071 parts) prepared as described in Example B3, in dry cyclohexane parts) was added to an aqueous solution of hexamethylene diamine (9.929 parts of an 0.8722 N solution) in water parts) containing sodium lauryl sulphate (0.5 part) 0 O E) [JiQoorncmoQ-%-ocmcnzoooomorno 0 n 16 with very good agitation. The mixture was rapidly agivolume of the acetic acid/acetic anhydride distillate was tated for 15 minutes and then poured into acetone. The parts. The reaction temperature was then raised to precipitated polymer was filtered off, washed and dried. 283 C. and the excess acetic anhydride distilled out. A The polymer, which was crystalline and fibre forming, vacuum of 0.1 mm. Hg was then applied and the melt melted in the range 310-318 C. and had a viscosity ratio rapidly hi k d Th resulting polymer was amorphous of (measured as a 1% Solution ill Ill-6113501)" but could be crystallised by annealing at 140 C. for 3 Example D2.-Polycondensation of 1:5 bis(B-p-chloro hours- Th6 crystalline melting Point of tha P y Was methoxy phenoxy ethoxy)naphtha1ene and he a ethin the range 210-222" C. Strong fibres could be pulled ylene diamine from the melt.

The procedure described in Example D1 using the di- Example E2.-P0lyether anhydride from 1:5 bis(fi-pacid chloride prepared as in Example B6 was followed. carboxy phenoxy ethoxy) naphthalene and acetic an- The resulting crystalline polymer melted over the range hydride 285-325 C. and had a viscosity ratio of 1.16 (1% solu- 0 tion in m-cresol at 25 C.). 25 ll Q C OCHzCHzO Example D3.Polycondensation of 1:4 bis(,9-p-chloro Q carbonyl-o-methoxy phenoxy ethoxy)benzene and hexamethylene diamine 0011 011 0 p 0 -d oonzcn oo 0112011 0 ENH(CH )sNH The procedure described in Example D1 was followed The procedure described in Example E1, using the diusing the diacid chloride prepared as in Example B14. carboxylic acid prepared as in Example B5, was essential- The resulting crystalline polymer melted in the range 1y followed except that the dianhydride initially formed 174-176 C. and had a relative viscosity (1% solution in was twice recrystallised, with carbon treatment, from fresh m-cresol at 25 C.) of 1.22. acetic anhydride. The dianhydride was then polymerized in the normal manner. The final polymer was fibre form- (E) PREPARATION OF MISCELLANEOUS ing and amorphous although it could be crystallized by POLYMEFS heating at 140 C. for 3 days. The crystalline melting point Example E1.Polyether anhydride from 1:4 b1s(p-p-carof h polymer was in the range 289-291 C.

boxy phenoxy ethoxy)benzene and acetic anhydride 5 Example E3.-Polyether 1:3 :4 oxadiazole from 1:4 bis(fl- 0 o I p-hydrazo carbonyl phenoxy ethoxy) benzene and seba- A suspension of the above dicarboxylic acid (2.19 The polyetherhydrazide was formed initially and then parts), prepared as in Example B2, in acetic anhydride converted, by heat, to the polyether 113:4 oxadiazole (11 parts) was heated at 222 C. in a nitrogen atmos- 1:4 bis(;8-p-hydrazo carbonyl phenoxy ethoxy) benzene phere. Acetic acid was produced and distilled out together (4.66 parts), prepared as in Example B16, was dissolved with some unreacted acetic anhydride. Fresh acetic anhyin hexamethyl phosphoramide (50 partsdried over dride was continually added to the mixture until the total molecular sieves). The solution was then cooled to 10 C.

and freshly distilled sebacoyl chloride (2.39 parts in 10 parts dry hexamethylphosphoramide) added over 10 minutes. The solution was then stirred at room temperature for 18 hours. After this time, the viscosity of the solution had increased considerably and also some precipitation had occurred. The solution was then poured into water and the precipitated polyetherhydrazide filtered oif, washed with water and acetone and dried in a vacuum oven at 50 C. The polyetherhydrazide melted in the range 284- 288 C.

The polyether hydrazide was then converted to the polyether 1:3 :4 oxadiazole by heating at 259 C. for 4 /2 hours at 0.5 mm. Hg. The resulting polymer melted in the range 190-195 C. and had a viscosity ratio (1% solution in ortho chloro phenol at 25 C.) of 1.82.

Example E4.Polyethersemicarbazide from 1:4 bis(fi-phydrazo carbonyl phenoxy ethoxy) benzene and hexamethylene diisocyanate A sample of the above polymer prepared as in example C5 was melt spun on a micro rod spinner at 263 C. The single filament was wound up at 300 feet per minute and subsequently drawn to 4 times its original length over a heated pin at 60 C. and a heated plate at 105 C. This drawn fibre, denier 11.3 had an initial modulus of 67 grams per denier, a breaking tenacity of 2.84 grams per denier and a breaking elongation of 13.2%.

The drawn fibre (heat set at 160 C. for 30 minutes) had a second order transition temperature (Tg) of 130 C.

Example F4.-Fibre processing of the polycondensate of 1:5 bis(B-p-methoxy carbonyl phenoxy ethoxy) naphthalene and ethylene glycol A sample of the polymer described above prepared as in Example C6 was melt spun at 272 C. on a red spinner. The single filament was wound up at 400 feet per minute and subsequently drawn to 5 times its original length 0 ll [-NHCNHNHCQOCH CH OQOCH CH OQONHNHCNH-(CH h-1 D 1:4 bis (B-p-hydrazo carbonyl phenoxy ethoxy) benzene (2.49 parts) and hexamethylene diisocyanate (0.83 part) were dissolved at 50 C. in freshly distilled dimethyl sulphoxide (100 parts). The mixture was further heated at 100-110 C. for 2 hours and then allowed to cool. The resulting clear solution was poured into water and the precipitated polyether semicarbazide filtered 011, washed with water and acetone and dried. The polymer, which was crystalline, melted in the range 265282 C. and had a viscosity ratio (1% solution in dimethyl sulphoxide at C.) of 1.26.

(F) FIBRE PROCESSING AND PHYSICAL PROPERTIES Example F1.Fibre processing of polycondensate of 1:4 bis(B-p-methoxy carbonyl phenoxy ethoxy) benzene and ethylene glycol A sample of the polymer described above prepared as in Example C1 was melt spun at 230 C. on a micro rod spinner. The single filament was wound up at 400 ft./minute and subsequently drawn to 5 times its original length over a heated pin at 90 C. and a heated plate at 160 C. This drawn fibre, denier 10:5, density 1.341, had an initial modulus of 186 grams per denier, a breaking tenacity of 6.36 grams per denier and a breaking elongation of 5.1%.

The drawn yarn (heat set at 135 C. for minutes) had a second order transition (Tg) at 88 C. and an optical birefringence of 227x l0 (97.5% of calculated theoretical maximum). The second order transition temperature was determined by a dynamic mechanical technique at 10 cycles per second.

Example F.2.Fibre processing of the polycondensate of 1:4 (fi-p-rnethoxy carbonyl phenoxy ethoxy) benzene-and124 cyclohexane dimethanol, 80/20 trans/ cis isomer A sample of the polymer described above, prepared as in Example C4, was melt spun on a micro rod spinner at 250 C. The single filament was wound up at 300 feet per minute and subsequently drawn to 3.5 times its original length over a heated pin at 60 C. and a heated plate at 105 C. This drawn fibre, denier 13.8, had an initial modulus of 64.5 grams per denier, a breaking tenacity of 2.22 grams per denier and a breaking elongation of 13.8%.

Example F3.Fibre processing of the polycondensate of 1:4 bis(;3-p-methoxy carbonyl phenoxy ethoxy} benzene and 1:4 cyclohexane dimethanol, all trans isomer ence of the spun yarn was 176 10- (66.5% of the theoretical maximum).

Example F5.Fibre processing of the polycondensate of 2:6 bis(fi-p-methoxy carbonyi phenoxy ethoxy) naphthalene and ethylene glycol A sample of the polymer described above prepared as in Example C9 was melt spun at 295 C. on a micro-rod spinner. The single filament was wound up to 400 ft./ minute and subsequently drawn to twice its original length over a heated pin at C. and a heated plate at 210 C. This drawn fibre, denier 15.6 had an initial modulus of 71.5 frams per denier, a breaking tenacity of 2.44 grams per denier and a breaking elongation of 14.6%.

What is claimed is: 1. A compound of the formula:

Ar, Ar and Ar are each of any one of the following diradicals:

a, b, d and e are each any one of the substituents -H,

CH3 and C2H5,

R is lower alkoxyl,

m, n and p are each an integer which is not less than 2 and not more than 6, and the aromatic ring, or either or both of the aromatic rings, of the diradicals may optionally be substituted in at least one of the free positions, each such substituent being a methyl, ethyl, methoxy, ethoxy or halogen substituent.

2. The product of claim 1 wherein Ar and Ar are selected from the group consisting of 1,4 phenylene; o-methoxy-lA-phenylene; and 2,6naphthenylene; Ar is selected from the group consisting of 1,4-phenylene; 1,5-

wherein R is lower alkoxy, n is an integer not less than 2 and not more than 6, and the aromatic ring may optionally be substituted in at least one of the free positions, each such substituent being a methyl, ethyl, methoxy, ethoxy, or halogen substituent.

4. The compound of claim 3 wherein R is lower alkoxy, n is 2 to 4 inclusive; and said substituent where present is lower alkoxy.

5. The compound of claim 4 wherein R is methoxy, n is 2 to 4 and said substituent, where present, is methoxy.

6. The compound of claim 4 wherein R is methoxy, n is 2 and the aromatic rings are not substituted.

7. The compound of claim 5 wherein R is methoxy, n is 2 and said substituent is methoxy, said compound havnaphthalene; 2,6-naphthalene; 4,4'-cliphenylene and 4,4'- 15 ing the following structural formula:

diphenylene sulfone; m and n is 2 to 4, inclusive, and R is lower alkoxy.

3. A compound of the formula:

OCH CH O 8. The compound of claim 5 wherein n is 4. 9. The compound of claim 8 wherein R is methoxy and said aromatic rings are not substituted.

References Cited UNITED STATES PATENTS JAMES A. PATTEN, Primary Examiner R. S. WEISSBERG, Assistant Examiner US. Cl. X.R.

260--75 N, 75 R, 75 H, 75 S, 45 6 P, 470, 473 F, 516, 517, 520, 52-1 R, 544 F, 544 M, 559 H 2221 5 UNITED STATES PATENT OFFICE CERTIFICATE OF CQRRECTION Patent No. 3,646,108 Dated February 29, 1972 'Inventorfls) Edward Barrv Jones .and John Mather It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

G1 the Abstract, line 40, "-CH H 2 5 should read -C Column 2, Scheme I should read s so (cH o A1" o (c11 OH CH Ph- SO Cl H0 -(CH -O A1" o (c11 OH Cl-SO -Ph 411 Column 2, Scheme II, formula 4.2 first part should read o o I I! H cs. 00 OCH cu os- CH HO--- OH Column 3, line 35, "Ar, Ar A, :1," should read Ar, Ar Ar" n,

zgfi UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTIGN patent 3,646,108 Dated February 29, 1972 Edward Barrv Jones and John Mather It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 4, line 30, the formula should read 1 H O H H O O H I}! Column 4, line 56, after the words "optical brighteners" a line was omitted which should read and substances designed to improve substantivity to- Column 6, line 75, "l-LP. 2l5-2l5C." should read M. P. 215-2l6C.

Column 7, Example B8, the formula should read 1 cE oc@ ocH cH OQOcH CH mQCm Column 8, lines 47 and 48, the word "recrystallized" should be crystallized Column 8, Example B10, the formula should read Column 8, Example Bll, the formula should read v $273 3 UNITED STATES PATENT OFFICE fiERTIFICATE OF CORRECTIGN patent 1%.. 3,646,108- Dated February 29, 1972 Inventofls) E ard Parr .Tofnpg John Malhar It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 8, line 71, (2.5 parts) should read (23.5 parts) Column 8, line 72, "179C." should read 179C Column 10, line 10, "phenoxy ethoxy benzene" should read phenoxy ethoxy) benzene Column 10, Example C3, should read w I i H V H e H V m el. o...

Column 10, line 73, after the word "antioxidant" the following words were omitted bis (2-hydroxy-3- -methylcyclohexyl-5- methyl) phenyl Column 11, line 29, "phenoxy ethoxy naphthalene should read phenoxy ethoxy) naphthalene Column 11, line 68, "phenoxy ethoxy naphthalene" should read phenoxy ethoxy) naphthalene Column 12, line -2 of Example 9C, "phenoxy ethoxy naphthalene" should read phenoxy ethoxy) naphthalene; V

Column 13, Example Cl4,--the formula should read g I a R i 3 -c QOCH CH Q fi QOCH CH OQ CQCH CH O- "733 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTIQN Patent No. 3,646,108 Dated February 29, 1972 l Eclwaru Barry uunes emu uuun hauler It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

rColumn 13, Example C12, the formula should read .1

o 0 4% GOCH CH Q QGOCHZCHZOQCOWHZ) o- Column 15, Example E1, the formula should read (CH) 0 coca CH0 Column 16, Example E3, the second formula should read OCH ca 0 OCH cn o c c-(cn -c c- Column 18, line -8, "13.2%" should be l3,3%

Column 18, line 17, the word "red" should rod Column 18, line 39, the word "carbonyi" should be carbonyl $31 3? UNRTED STATES PATENT ormm QERTIHCATE GP QQRREUHQN Patent No. 3,646,108 Da d February 29; 1972 m 'naward marry dunes and Juhn Mather 5 It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Claim 1, line 11, the formula should read O O O a a d H H I I I -o- -,-s-,-s-,- s |:-,-c-cor -(-CH o b r) Signed and sealed this 26th day of December 1972...

(SEAL) Attest:

EDWARD M.FLET( IHER,JR. ROBERT GOTTSCHALK Attestlng Offlcer Commissioner of Patents 

